Tirzepatide × NextGen Peptides — Lab Test, February 2026
freedomdiagnosticstesting.com publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.
This certificate carries no lookup code.
Test results
This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
About this test
Independent HPLC purity analysis of GLP-1 TZ from nexxgenpeptides.com, performed by freedomdiagnosticstesting.com on February 19, 2026. Reported purity: 99.82%. Net content: 19.69 mg against 20 mg labeled (98% of label). Endotoxins: ≤0.68 EU/mL. Batch TZM-43. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Have you tested this peptide?
Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.
Community discussion